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%option batch
%option c++
%option noyywrap
%option 8bit
%option stack
%option yylineno
%option yyclass="Portage::Utils::UnpackPqTextArray"
%option prefix="pqBase"
%{
#include "unpackPqTextArray.h"
#include <boost/algorithm/string/trim.hpp>
#pragma GCC diagnostic ignored "-Wsign-compare"
%}
begin "{"
end "}"
comma ,
unquoted [^,\"}]+
quote \"
esc \\.
char [^"]
%x FIRST
%x AFTER
%x NEXT
%x QUOTED
%%
{begin} {
yy_push_state(FIRST);
}
<FIRST,AFTER>{end} {
yy_pop_state();
}
<FIRST,NEXT>{unquoted} {
list.push_back(YYText());
BEGIN(AFTER);
}
<FIRST,NEXT>{quote} {
list.push_back(std::string());
BEGIN(QUOTED);
}
<AFTER>{comma} {
BEGIN(NEXT);
}
<QUOTED>{quote} {
BEGIN(AFTER);
}
<QUOTED>{esc} {
list.back().push_back(*(YYText() + 1));
}
<QUOTED>{char} {
list.back().append(YYText());
}
%%
namespace Portage {
namespace Utils {
UnpackPqTextArray::UnpackPqTextArray(std::istream & f, ::Gentoo::StringList & sl) :
yyFlexLexer(&f, NULL),
list(sl)
{
}
void
UnpackPqTextArray::LexerError(const char * msg)
{
throw std::runtime_error(msg);
}
}
}
|
